Home / 72,088.77-99,481.46-40,258.11

Finding the Fourth Proportional to 72,088.77, 99,481.46 and 40,258.11

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Solution

The fourth proportional to 72,088.77, 99,481.46 and 40,258.11 is: 55,555.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,088.77 : 99,481.46 = 40,258.11 : x
  2. Step 2: Convert to fraction form
    72,088.77/99,481.46 = 40,258.11/x
  3. Step 3: Cross multiply
    72,088.77x = 99,481.46 × 40,258.11
  4. Step 4: Simplify right side
    72,088.77x = 4,004,935,358.35
  5. Step 5: Solve for x
    x = 4,004,935,358.35/72,088.77
  6. Step 6: Final answer
    x = 55,555.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.